European Commission




Instituto de Engenharia Mecânica, Portugal

Centro Sviluppo Materiali S.p.A, Italy

Onderzoekscentrum Voor Aanwending Van Staal N.V., Belgium

Centre Internacional de Metodes Numerics en Enginyeria, Spain

University of Thessaly – Research Committee, Greece

Rheinisch-Westfälische Technische Hochschule Aachen, Germany

Consorzio Pisa Ricerche, Italy

Salzgitter Mannesmann Forschung GmbH, Germany


Steel members subjected to extreme loading conditions (e.g. earthquakes, hurricanes, support settlements, industrial plant shutdown) undergo large deformations, associated with widespread yielding, leading to fracture, either due to monotonic loading or ultra-low-cycle fatigue (ULCF). This project aims at developing innovative computational methodologies that simulate steel material fracture under ultra-low-cycle fatigue following a multiscale approach, with calibration from both micro and macroscale testing. The project focuses on base steel material only and on pipeline applications. Project results (experimental/numerical), will be used to develop design guidelines for strain-based ULCF design, amending current fatigue design practice (EC3, EC8).

Principal Investigator for U.Th.:

Spyros A. Karamanos

Total Budget:

2,312,481.98 Euros

U.Th. Budget:

248,377.50 Euros


36 months (2011 - 2014)



Figure 1: Stress-strain curve for reverse loading of high-strength steel.


Figure 2: Stress-strain curve for reverse loading of P355 steel.

Spyros A. Karamanos, PhD

Department of Mechanical Engineering | University of Thessaly | Pedion Areos, Volos 38334, Greece
Phone: +30 - 24210 74086, 74360 | Fax : +30 - 24210 74360 | Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

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